baber/WOPTO huggingface dataset:
Patent GB-1018399-A (GB)
Title: Semiconductor devices
Inventor: NEW THORNDIKE C
IPC: H01L29/207
Filed: 1963-12-31
Abstract: 1,018,399. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. Dec. 31, 1963 [Jan. 4, 1963], No. 51278/63. Heading H1K. A semi-conductor device comprises a body of semi-conductor material having two regions forming a PN junction, one region having a graded impurity concentration, increasing away from the junction, the portion adjacent the junction containing a first impurity and a portion remote from the junction containing both the first impurity and a second impurity of the same conductivity type, both portions of the region being produced by diffusing the impurities into the body from the vapour phase. As shown, Fig. 5, an N-type silicon body has aluminium and gallium simultaneously diffused from the vapour phase into its surface. The aluminium forms a shallow impurity concentration gradient at the junction, while the gallium forms a high impurity concentration at the surface of the body. The invention is used in the manufacture of semi-conductor controlled rectifiers, in which a plurality of wafers W of N-type silicon are degreased, rinsed using an ultrasonic cleaner, etched, dried, and placed in a quartz tube together with a diffusion source, comprising a P-type silicon slice, on to the surface of which an alloy of gallium and aluminium has been previously fused in vacuo. The quartz tube is then evacuated and heated to produce a graded layer at P+P-type conductivity in the surface of the N-type wafer. Ohmic contacts 16 and 20 and rectifying contact 18, in the form of a ring surrounding contact 20, are formed by alloying appropriate foils to the P+-type surface. A circular groove 22 is then formed to divide the P+P-type layer, and hence the PN- junction 14, into two parts 23 and 26 forming the gate and anode regions respectively. Alternatively the whole of the P+P-type layer may be removed from the periphery of the device. Leads are then applied to the anode, gate and cathode contacts 16, 18, 20 respectively and the device may be encapsulated. A table of suitable impurities for use with the semi-conductors silicon, germanium and indiumarsenide of both P and N-type conductivities is given in the Specification.
Patent GB-1116100-A (GB)
Title: Transducer for measuring the instantaneous rate of flow of a fluid
IPC: G01F9/00
Filed: 1965-12-02
Abstract: 1,116,100. Measuring fluid flow electrically; Measuring fluid flow; pressure gauges. EDITORIALE DOMUS, S.p.A. Dec. 2,1965 [Dec. 10, 1964], No. 51291/65. Headings G1L, G1N and G1R. A fluid flow transducer consists of a chamber 5, Fig. 1, into which the fluid flows from an inlet 1, and a bellows 8 into which the fluid flows from the chamber 5 via a constriction 6, the size of the constriction being varied by movement of a tubular member 7 secured to the moving end of the bellows. The fluid flows through the member 7 into the bellows and out through an outlet 9. A further tubular element 10, which with the movable member defines the constriction, is adjustable by a screw 12. A magnetically permeable plate 13 is attached to the movable member 7 and co-operates with a pot-core 14 carrying a winding 15, thereby varying the inductance thereof. The coil 15 and a fixed coil 17 are connected in a bridge circuit Fig. 2 (not shown) energized by a transistorized oscillator (25, 26) the remaining two arms of the bridge being formed by a potentiometer (33) which is used to set the zero of the device. The bridge energizing voltage from the secondary (27e) of the oscillator transformer (27) is fed via a thermistor (32) which is situated near the bellows and compensates the output measuring signal for temperature dependent changes in the viscosity of the fluid which would tend to reduce the differential pressure measured by the bellows.
Patent GB-1081440-A (GB)
Title: Pressure regulating device for maintaining a predetermined pressure ratio between two pressure medium circuits
IPC: G05D16/18
Filed: 1964-12-18
Abstract: 1,081,440. Fluid-pressure servomotor systems. M. VON BUSHE and T. ALTEN BRACHT [trading as TH. KIESERLING & AL BRECHT]. Dec. 18, 1964 [March 26, 1964], No. 51658/64. Heading G3P. A pressure regulating device for maintaining a predetermined pressure ratio between two fluid-pressure circuits comprises a reducing valve 17 which controls flow from a supply passage 16 to a passage 16a forming one of the circuits. The pressure in the passage 16a acts through passage 17b on a piston portion 17a of the valve in a direction to close the valve and this fluid flows through a throttle 17c to act on the upper end of the valve. The pressure acting on this upper end is controlled by a valve 24 which is loaded to the closed position by a spring 23. The strength of the spring is adjusted by the pressure in the other circuit 14c acting on a piston 18, which adjusts the loading of the spring 23 through a lever 20a, 20b having an adjustable pivot 20. Thus, changes in pressure in the circuit 14c varies the loading on valve 24 and thus the pressure acting in a valve opening direction on the valve 17, the pressure in the circuit 16a being proportional to the loading on the valve 17.
Patent GB-1431708-A (GB)
Title: Movable ramp
IPC: B65G69/28
Filed: 1973-11-09
Abstract: 1431708 Ramps K ALTEN 9 Nov 1973 [15 Nov 1972] 52017/73 Heading B8H The disclosure is the same as that of Specification 1,431,707 but the claims relate to the provision of wheels to facilitate movement of the ramp.
Patent GB-1520740-A (GB)
Title: Sanitary garment
IPC: A41B13/04
Filed: 1975-12-02
Abstract: 1520740 Sanitary garment COURTAULDS Ltd 2 Dec 1975 [3 Dec 1974] 52199/74 Heading A3V A sanitary garment for use with an absorbent pad comprises a central panel 13 of non-stretchable material and side panels 14, 15 of two-way stretch fabric, elastic waist bands 4, 5 and hook and loop type co-operating fasteners 6, 7 and 8, 9 and 11, 12. The part 6 is wider than the co-operating part 7 to allow for adjustment and adjustment is alowed for in the other fastening parts. Panel 13 may be of synthetic continuous filament yarn and the other panels of spandex textured nylon or other continuous filament synthetic yarn. The absorbent pad insert may be of known type attachable by means of adhesive which can be released without damage to panel 13.
Patent GB-1364885-A (GB)
Title: Fencing
IPC: E04H17/18
Filed: 1972-11-09
Abstract: 1364885 Fencing N M CLARE 9 Nov 1972 [11 Nov 1971] 52358/71 Heading E1B A prefabricated fencing unit comprises a frame structure 12 including at least one support post 11 having a hollow body 13 adapted to receive water or ballast secured to the lower end thereof. There may only be a support post 11 at one end of the unit or alternatively adjacent members in the fence may have no support posts and two support posts respectively. The intermediate bars 12b may stop at the upper cross bar 12a and barbed wire attached between cranked portion 11a of adjacent posts.
Patent GB-1434258-A (GB)
Title: Points system conveyor
IPC: B65G21/16
Filed: 1973-11-12
Abstract: 1434258 Switching-type endless chain conveyer FERAG AG 12 Nov 1973 [13 Nov 1972] 52446/73 Heading B8A Loads on a conveyer (not shown) are switched to a selectable one of a group of conveyers (not shown) by means of an endless conveyer, the frame 12 of which is in the form of a single plate, leaf spring, and can be flexed under the action of an hydraulic unit 73. The endless member is a roller chain 57 which bears on a guide rail 11 carried by the top edge of the plate 12. One end of the latter is clamped between members 44, 45 (Fig. 7) which have rearward extensions pivotally connected to the lower portion of a vertically extending link 40. The upper end of the latter is pivotally suspended on a pin 39 (Fig. 6) carried between a forwardly extending bifurcated portion 37, 38, of a main support member 34. This suspension of the plate 12 provides it with rigidity against lateral and vertical movement at its clamped end, but allows a limited degree of longitudinal movement that occurs when the forward end of the plate 12 is deflected by the unit 73. The forward end of the plate 12 is clamped to a member 63 carried by a radius rod 67 pivotally mounted on the frame at 68. Plates 76, 77, are clamped at intervals to the plate 12, and have guide grooves for load-carrying members 75, connected to respective links of the conveyer chain 57. A stack of sheets being conveyed, is shown supported by members 75 and fixed frame plates 32, 32. The latter are contoured as at V<SP>1</SP>, V<SP>11</SP> (Fig. 5) in order to provide for the deflection of the conveyer. The latter can be used in the reverse sense, i.e. to connect one of a group of upstream conveyers with a single downstream conveyer.
Patent GB-1414435-A (GB)
Title: Method and apparatus for controlling a volatile substance
IPC: F17C13/12
Filed: 1973-11-13
Abstract: 1414435 Control of pressurized sterilant gas H W ANDERSEN PRODUCTS Inc 13 Nov 1973 [10 Aug 1973] 52573/73 Heading F4P Apparatus for controlling a gaseous sterilant comprises a closed storage vessel 10 containing gaseous sterilant under pressure and a container 12 holding liquid 13 capable of absorbing the gaseous sterilant. The storage vessel is immersed in the liquid and sensing elements 40, 42, 44 and other devices 46, 48 detect physiochemical changes such as change in specific gravity in the liquid caused by release of sterilant gas into the liquid.
Patent GB-1361876-A (GB)
Title: Hydraulic press for wringing yarn or flock
IPC: D06B5/14
Filed: 1971-11-12
Abstract: 1361876 Hydraulic press for wringing yarns &c A FERRARI 12 Nov 1971 [4 Dec 1970] 52584/71 Heading D1L A hydraulic press for wringing and rinsing yarn and flock comprises a baseplate 1 carrying a slidable platform 2 which supports a rotatable circular platform 5 having a toothed peripherary 6 and shaped vertical supports 7 for stably supporting a perforated container 6 for the material to be wrung, and a main hydraulic jack 26 having a pressing foot 27 and supported for reciprocation into the container 9 via crosspiece 24 and vertical columns 20, 21 mounted on the base plate 1, the circular platform 5 being intermittently rotated during reciprocation of the pressing foot 27 by a second hydraulic jack 10 (Fig. 4) coupled by clamp 13 to an arm 14 which extends radially of the platform 5 and carries a pawl 16 which engages the toothed periphery 6 of the platform, the position of the clamp 13 along the arm 14, and hence the degree of displacement of the platform for each complete stroke of the jack 10, being variable between any one of a plurality of positions. In operation the perforated container 9 is filled with the material to be wrung, the container is placed on platform 5 by a conventional twist and the platform 5 is moved by sliding platform 2 under hydraulic jack 25. The jack 25 is then activated and presses the material downwards and returns to its upward position. Platform 5 is then rotated through a desired angle and the pressing foot again lowered, the sequence being repeated as required. A douche 47 supplied with water under pressure may be provided above container 9 so that a simultaneous rinsing and wringing operation may be performed. The rotatable platform 5 may be locked during each pressing operation by a series of L-shaped locking pieces engaging with its periphery and activated by further hydraulic jacks [see Fig. 2, not shown].
Patent GB-1085069-A (GB)
Title: Switch-fuse unit for electrical panelboard
IPC: H01H73/02
Filed: 1965-12-10
Abstract: 1,085,069. Snap-action switches; two-part couplings; fusible cut-outs. SQUARE D CO. Dec. 10, 1965 [Dec. 23, 1964], No. 52599/65. Headings H2B. H2E and H2G. A switch-and-fuse has a handle 28 connected by a tension spring 40 to a contact arm 30 pivoted to the handle at 34, 36 and having a contact 32 co-operating with a fixed contact 24. The contact 32 is connected to a fixed clip contact 48 of a cartridge fuse 50 mounted in a withdrawable holder 62 which has a further clip 64a connected to a contact 64b engageable with a fixed contact 56c on a terminal 56. The holder 62 cannot be inserted or withdrawn when the switch is " on " because of a plunger 66a which is projected into a recess 62b in the holder by a cam 28b on the handle 28. A lamp 70 connected between terminal 56 and clip 48 indicates when the fuse is blown or withdrawn. If the contacts 24, 32 weld, a projection 46 on the contact arm engages a lug 44 to force them apart.
Patent GB-1335375-A (GB)
Title: Scouring tank
IPC: B24B31/073
Filed: 1970-11-05
Abstract: 1335375 Vibratory finishing C K WALTHER [trading as CARL KURT WALTHER GmbH & CO KG] 5 Nov 1970 [19 Nov 1969] 52613/70 Heading B3D  A vibratory scouring tank comprises a helical channel 8 for receiving articles to be treated and a treating agent, the tank contents, during operation, moving along a helical path from a lower channel end wall 11 to an upper channel end B, and a separating sieve 18 which is rotatable about an axis (z-z, Fig. 4, not shown) and to bring an opening 25 therein to a lowermost position. The tank has an upwardly open channel and is mounted on a plate 7 carried by coil springs from a base-plate, the tank being vibrated by eccentric weights on a vertical driveshaft. The lower channel end wall 11 is connected by an obliquely-inclined surface 12 to the end 13 of the upper channel. An ejection passage 15 extends in line with the upper channel end and has side walls 16, 17 provided with brackets 29 supporting rollers 28 engaging rims 26, 27 at the ends of the sieve 18 which is U- shaped with two sides 22, 23 formed as sieves of differing mesh size and the third side 24 without a sieve. The ends of the sides adjacent the upper channel end B are flared. A piston-andcylinder device 32 is connected by a link 33 to a reversible freewheel 37 and friction roller 38 whereby the sieve may be rotated about its longitudinal axis (z-z) to a first position wherein the opening 25 is lowermost and the workpieces and treating agent drop from the upper channel end B to the lower channel end A over the surface 12 and wall 11 for repeated treating, a second position wherein the sieve surfaces are lowermost so that the workpieces pass along the ejection passage 15 but the treating agent passes through the sieve to the lower channel end, or a third position in which the closed side 24 is lowermost for ejection of both the workpieces and the treating agent. A magnetic belt 42 may be provided for removing chips from the tank contents.
Patent GB-1417264-A (GB)
Title: Means for holding and electrically-contacting thermally-loaded ceramic resistors
IPC: H01C1/02
Filed: 1973-11-14
Abstract: 1417264 PTC resistor assemblies DANFOSS AS 14 Nov 1973 [14 Nov 1972] 52888/73 Heading H1K An assembly for a ceramic resistor operating at high temperatures specifically with a positive temperature coefficient comprises a case of heat resisting insulant plastic having two parts 1, 2, riveted together and registering at lip 3, enclosing a disc resistor body loosely supported by ribs 7, 8 in aperture 6; the ribs being integrally moulded with parts 1, 2 respectively. The faces of the resistor are engaged by resilient contacts 9, 10 of resilient contact members 11 having external terminals 14 retained by end walls 12, 13 of the enclosure. In aperture 6 the periphery of the resistor 5 is enclosed over 180 degrees by rib 7 and retained by a bearing point of rib 8, while the former rib is extended at 15, 16 for connection to end walls 12, 13 by transverse webs 17, 18, 19 leaving ventilation openings 20, 21 for cooling air. In assembly resistor 5 and contacts 11 are inserted in part 1 up to rib 7 and retained by resilient members 11, while part 2 is fitted thereto so that rib 8 retains the resistor.
Patent GB-1187115-A (GB)
Title: Process for the production of Seco-Steroid Gonenes
IPC: A61K31/566
Filed: 1967-04-07
Abstract: 1,187,115. 8,14-Seco-steroids. AMERICAN HOME PRODUCTS CORP. 7 April, 1967 [7 April, 1966], No. 53133/69. Divided out of 1,187,113. Heading C2C. Novel seco-steroids of the Formula (II) are prepared by dehydrogenation of seco-steroids of the Formula (III) (wherein R is H, C 1-6  alkyl or C 1-6  alkanoyl; and R<SP>1</SP> is C 1-6  alkyl; and there may optionally be an alkyl or alkoxy group or a halogen atom at one or more of positions 1, 2 and 4). Preferably dehydrogenation is effected in the presence of an oxidizing catalyst in an inert solvent at 70‹ to 160‹ C.
Patent GB-1077369-A (GB)
Title: Low-temperature ferromagnetic devices
Inventor: PEARSON RONALD FERGUSON
IPC: C04B35/26
Filed: 1965-12-15
Abstract: 1,077,369. Magnetic structures. MULLARD Ltd. Dec. 15, 1965, No. 53203/65. Heading H1H. A core member for a pulse transformer comprises a single crystal of yttrium iron garnet having two parallel faces in 110 or 211 planes, and an aperture perpendicular to these planes. In manufacture the aperture is formed by ultrasonic drilling, and the core so formed annealed at 1200-1250‹ C. for 40-60 hours and cooled to room temperature at 5-10‹ C. per hour. The wound core is associated with a superconducting memory store.
Patent GB-1206437-A (GB)
Title: Tampon insertion device
IPC: A61F13/26
Filed: 1967-11-23
Abstract: 1,206,437. Tampon applicators. KIMBERLY-CLARK CORP. 23 Nov., 1967 [12 Dec., 1966[, No. 53426/67. Heading A5R. A device for ejecting a tampon from a tubular container 5 into the body comprises a cup-shaped piston (19) of flexible resilient material which has slanting side walls divided into circumferentally spaced spring sections 14, 15 (18, 20) and a handle 11 for operating the piston and pivotal on a spring section of the piston. The handle 11 is hinged to and preferably in one piece with the piston so that when the piston is located in the container behind the tampon, the handle can be disposed alongside the container for packaging or aligned with the axis of the container for operating the piston. The spring sections are defined by notches at least one of which extends into the flat bottom 17 of the piston for the passage of a tampon withdrawal cord 7. When in relaxed position, the diameter of the piston at the free ends of the spring sections is greater than the diameter of the container 5 so that when the piston is in the container the spring sections press against the wall of the container to resist withdrawal of the piston.
Patent GB-1487557-A (GB)
Title: Machine drive systems
IPC: H02P5/50
Filed: 1973-11-17
Abstract: 1487557 Automatic control of speed MASSON SCOTT THRISSELL ENG Ltd 18 Nov 1974 [17 Nov 1973] 53476/73 Heading G3R An electric motor control system which maintains a predetermined speed ratio between a pair of motors 21, 22 respectively driving a feedroller 1 and cutter 3 of a paper cutting machine comprises controllers 23, 24 which initially adjust the speed of the motor 22 to obtain an approximation to the predetermined ratio and thereafter adjusts the speed of the motor 21 until the predetermined ratio is attained. The control system comprises pulse generators 31, 32 which supply signals proportional to the motor output speeds to dividers 33, 34 programmable by a manual input 36 and arithmetic unit 35 to a selected ratio. The output from the dividers are fed to a comparator unit 37 which produces an error signal proportional to the difference between the actual motor speed ratio and the selected ratio. The error signals are fed to thyristor controllers 23, 24 controlling the speeds of the motors 21, 22. When the error signal is large the controller 24 adjusts the speed of the motor 22 until an approximation of the selected ratio is obtained whilst the controller 23 prevents adjustment of the speed of the motor 21. When the error signal is small the controller 24 prevents adjustment of the speed of the motor 22 whilst the controller 23 effects fine speed adjustment of the motor 21 until the predetermined ratio is obtained. As an alternative to mutually exclusive controllers 23, 24 an inhibit circuit 39 may be provided to ensure that only one of the controllers 23, 24 is operative at any one time.
Patent GB-1336155-A (GB)
Title: Preparation of 7-amino-cephalo-sporanic acid derivatives
IPC: C07D501/36
Filed: 1970-11-11
Abstract: 1336155 Preparation of 7-aminocephalosporanic acid derivatives FUJISAWA PHARMACEUTICAL CO Ltd 11 Nov 1970 [17 Nov 1969] 58753/70 Heading C2A A process for the preparation of 7-aminocephalosporanic acid derivatives of Formula I: where R 1  is azido, thiadiazolylthio, oxadiazolylthio or tetrazolylthio, X is thio, oxy or a single bond, R 2  is halogen or a sydnone, tetrazolyl, oxadiazolyl, thienyl, phenyl or thiadiazolyl, with the proviso that, if R 2  is halogen, X is a single bond, or a pharmaceutically acceptable salt thereof, which process comprises reacting a compound of general Formula II: in the presence of a base, with chlorotrimethylsilane, or reacting a salt of (II) with chlorotrimethylsilene, and further reacting the resultant compound III:  with a halogenating agent, still further reacting the resulting compound IV: with an alkanol and still further reacting the resulting compound V: with a compound of Formula VI: in the presence of a condensing agent. Alternatively a compound of Formula V may be reacted with a compound of Formula VI having a reactive group in place of the carboxyl group, in the presence of an organic base, and then hydrolysing the resulting compound VII: Certain of the stages are those used in the imino halide or imide halide reaction. The invention also comprises compounds of the Formula I.
Patent GB-1085349-A (GB)
Title: Improvements in or relating to rotor assemblies for turbines and like bladed machines
IPC: F01D5/30
Filed: 1965-12-20
Abstract: 1,085,349. Turbine blade fixing; gas turbine ducted fan engines. GENERAL ELECTRIC CO. Dec.20, 1965 [Dec. 29, 1964], No. 53791/65. Headings F1J and F1T. [Also in Division F2] In a rotor assembly for turbine and like bladed machines, e.g. a gas turbine engine with an aft fan, Fig. 1 (not shown), the rotor blades are located in the correct axial position in axial fir-tree slots in the rotor disc rim 33 by members 60, thereby ensuring the correct axial relationship between sealing members 47, 50 and 48, 51. These sealing members prevent leakage between the combustion products passage containing turbine blade portions 44, and an outer air passage containing fan blade portions 46. Each member 60 comprises a strip 61 seated on the periphery of the rim 33 between adjacent slots, and radially inwardly projecting tongues 62, 63 engaging the side walls of the rim. The upstream tongue 63 extends across at least one of the adjacent slots to provide abutments for the upstream ends 41a of the blade roots 41 entering these slots. Each upstream end 41a is held in contact with the tongue 63 by a locking strip 70 and the net axial thrust exerted on the associated blade 40 during operation of the engine. The spaces between adjacent blade roots underneath platforms 43 are sealed by closefitting baffles 66, 67, the sealing being improved by the effects of centrifugal force during engine operation. Additionally, the baffles 66, 67 damp vibrations.